Nobody could answer this?!? In the meantime, I escaped to the following work-around: * dnf install @xfce-desktop * Use 'startxfce4' instead of 'startkde' in ~/.Xclients With this changes, the problem disappears (but I now log in into a xfce desktop, of course), i.e. I could log in from a Win10 machine. Because of this, I still thinks it is a kind of KDE issue. Perhaps selinux has its finger in the pie? _______________________________________________ kde mailing list kde@xxxxxxxxxxxxxxxxxxxxxxx https://lists.fedoraproject.org/admin/lists/kde@xxxxxxxxxxxxxxxxxxxxxxx